Pick up a copy of Vogue or watch the slideshow online to see what's new in eco-friendly fashion. Not all the clothes and accessories Cameron models have an eco-bent -- the shoes especially aren't particularly green, which is perhaps why Cameron's proudly barefoot in a couple of photos -- but many items are made of organic cotton and recycled materials.

The accompanying article by Robert Sullivan -- who sounds very awestruck by Cameron's Prius-driving skills -- is more adulatory than eco-educational. Still, I learned about Cameron's MTV series Trippin' -- described as "a travelogue that explored environmental concerns, a celebrity twist on the nature shows of the sixties, with Cameron taking the rapper DMX camping in Yellowstone, or Eva Mendes to explore Nepal" -- and her efforts to lead by example:

She's clearly not looking to be a poster girl for the environmental movement. She is there for the environment if it needs her, buying carbon offsets with no great fanfare, making ecologically sensitive shopping choices quietly and happily. She is trying hard not to preach or scold. Of her Prius she says, "It's just a car." She has had one for years, before they became (her dream come true) popular. "It's just a choice people can make."

Can't get enough of Cameron? Here's a video of Cameron on Leno earlier this month, talking about her disgusting way of going green.